<div class="demo">
  <div class="mt-2">
    <nz-space nzSize="small">
      <button nz-button nzType="primary" *nzSpaceItem>添加数据</button>
      <button nz-button *nzSpaceItem>
        <span nz-icon nzType="upload"> </span>
        上传数据
      </button>
      <button nz-button *nzSpaceItem>校验数据</button>
    </nz-space>
  </div>

  <div class="mt-2">
    <nz-space nzSize="middle">
      <button nz-button nzType="primary" *nzSpaceItem>添加数据</button>
      <button nz-button *nzSpaceItem>
        <span nz-icon nzType="upload"> </span>
        上传数据
      </button>
      <button nz-button *nzSpaceItem>校验数据</button>
    </nz-space>
  </div>

  <div class="mt-2">
    <nz-space nzSize="large">
      <button nz-button nzType="primary" *nzSpaceItem>添加数据</button>
      <button nz-button *nzSpaceItem>
        <span nz-icon nzType="upload"> </span>
        上传数据
      </button>
      <button nz-button *nzSpaceItem>校验数据</button>
    </nz-space>
  </div>
</div>
